Denison Mines stock today: DNN ends 2025 slightly higher as uranium holds near $82
Denison Mines closed Wednesday up 1% at $2.66, the last session before the New Year’s Day market holiday. Spot uranium ended 2025 at $81.65 a pound, up nearly 7% in December, according to Trading Economics. Urenco USA completed its first run of 8.5% enriched uranium and plans commercial LEU+ production in 2026. Traders await Friday’s reopening for further uranium and nuclear-fuel sector signals.